Sewing machine



Aug- 31 1926.

SEWING MACHINE Filed April s,- 'i9254 llatented Aug. 31, 1926.,

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i .fr rein;

wrnnrnivr o. Hann, or sT. Leurs, irrssonnn snwrne MACHINE.

Application flied April e, 1925,. serial No. 21,505.

This invention relates to improvements in sewing machines, and more particularly to an4 attachment for feeding a tape to form a French binding for shoes.

An object of the invention is to provide an attachment whereby tape of varying width may be fed to the sewing mechanism of a sewing machine for attaching the same to the marginal edges of shoe uppers to forni a French binding.

Additional advantages of the construction will be apparent from the following detailed description thereof taken in connection with the accompanying drawing, in which Fig. 1 is a rear elevation of the attachment and associated parts.

Fig. 2 is an end view.

lig. 3 is a front elevation.

Fig. at is broken section.

5 illustrates a portion of a shoe upper with a tape attached to the marginal edge thereof.

Fig. G is an end View of the binder feed tube.

1n the embodiment of the invention illustrated in the drawing the attachment is shown in association with a sewing machine having a top arm 1 shown fragmentarily in the drawing, in which there is a reciprocating needle bar 2 carrying a needle 3. The top arm 1 carries a rigid support 4 for a presser roller bracket 5, said bracket being disposed in a vertical position and removably supporting near its lower end a roller arm 6. The roller shaft, which is in the form of a screw bolt 7 extends through 'the lower end of the arm 6 towhich it is secured by a nut 8 in such manner that the roller presser wheel 9 tilts baclrwarclly, as illustrated in the drawing. The roller presser wheel has a lmurled periphery 10 and a hub 11. said wheel being revolubly mounted upon the rigid shaft 7. rlhe forward. face 1Q of the wheel 9 is concave so that when the tape is fed forwardly against said face 12 the marginal edge of the face of the wheel E) tends to turn the lower edge of the tape to a horizontal position so as to receive a stitch from the needle.

The fiat piece of material 13, to the marginal edges of which the tape is attached, is fed forwardly between the periphery of the wheel Q'and the feed plate 14 of the sewing machine and is so positioned that the marginal edge thereof projects slightly beyond the edge of the roller presser wheel 9.

The attachment for feeding the tape includes a downwardly curved armv15 removably .attachedv to the roller presser bracket 5 by a screw 16 operating in a slot 17. At the back-of the arm 15 is a curved guide plate 18 having a loop 19 at its extremity through which the tape is threaded. tending forwardly and downwardly from the front of the arm 15 is a binder feed tube 20, which tube is formed from flattened spaced walls providing` an upper throat 21 the edge of which inclines downwardly and the vertical dimension of which is such that it is adapted to receive a tape of the maximum width. r1`he tube 2O is so supported that it inclines inwardly toward the face .12

of the roller presser wheel 9, the lower inarginal edge o-f the tube being turned out at 22 to form a deflecting surface for the lower marginal edge of the tape, therebyfeeding the tape against the material to4 which it is to be stitched in substantially a horizontal plane with the face of such material. The upper edge of the lower portion of the tube is slightly deflected outwardly at 23 and the vertical dimension of the lower throat of the tube is less than the vertical dimension of the opposite throat so that when tape of the maximum width is fed through the tube the upper edge thereof will be turned outwardly forcing the lower marginal edge of the tape to the lower wall of the tube, so that it will be guided as it is presented to the material to which it is to be stitched in substantially a horizontal plane. The variation between the vertical dimension of the inlet end of the tube and the Voutlet end of the tube is substantially the variation between the various widths of tape with which the feeding device is adapted to operate.

y the use of the attachment the tape may be fed for stitching operation on all classes of shoe uppers where sharp curves or angles in the direction of the stitching is "equired without lapping or wrinkling the tape in any manner. i

1 am aware that the invention may be varied in various particulars without departing from the spirit and scope'thereof. 1 do not limit myself therefore to unessential 'details but what I claim and desire to secure by Letters Patent is 1. 1n a sewing machine, the combination `with stitching` and feeding mechanism, said feeding mechanism including a presser rollranged adjacent to the .conc-ave faceof` the roller, and Vsaid guideway having a delivery throat, the vertical portion; of, :said-iguide-y kWay being 'disposed linwardly of the outer plane oi the rollen andthe K lower.; marginal edgel oesaid outrtimned'pontion' ofi the guilde'- Way extending outwardly from. the plane.-`

of-Athe roller,` wherebyI the1` outer -manginalx edge of the tafpe is -ffed to; the stitching -point` im Substantially a horizontal positfiom 2;l ln a sewing machineythe combinationy with l stitching mechanism, 01faiflatg. f'eedfk mechanism fon Lthe Hlaterial,` Saidf fee dmech anisnfl;,including a presser, roller; having a.

concave entenwfac@ a remoiiable 'attachment' forl feeding-*tape including ain arma aygildeg, tube, i .the deli-Very i plate, and: a tape feeding en'd'zofH Saidtubey dieposedx Withinv the; con-V cayeportrion of the feedi roller zandiY the lower;V`

marginal edge;l ofA ,the throatofi the ldeliajfery. end .of Said, tube, being :deflected outwardly;

Y oi an at:V

the outermarginal.edge'othe t'ape isslpresented to the. stitching pointk adjacent to the outer-.edge of thefeedL roller,l said feeding throat coacting with .the concave face of the rollertoyturn the vlower marginal edge of the tape outwardly. l

Valn .aiesewinggmajchinm the combination With stitching mechanism and feeding mechanism. forthe material, o avt-apel feedl ing: guide .Y tube 1 havingi a.; verticali and-,gan outwardly a marginal edge of-ztheitape arlongntheff line of' stitehing substantially paralleli with the fa'cegofrthe material to which thegtapeais.,vatey tached and; said tubeftapering; doWnwardlyrinfsubstantiallya horizontal plane, Awhereby portiom` f curved throat presenting.

an; on,twaamclly-l turned upper portion; and; an

inggthronghsaid: gnidegtnbe; to,v holdztlie` low:A

er marginaledge lofit'he-y tape closeragainst.;

thecurved lower -`marginal edge; ofiA ther de;- livery throat thereof..

' HAKE.' 

